Transmission Methods
Transmission methods vary by market, region, carrier, and equipment.
- 2B1Q: Two-binary, one-quaternary, used for IDSL and HDSL
- CAP: Carrierless Amplitude Phase Modulation - deprecated in 1996 for ADSL, used for HDSL
- TC-PAM: Trellis Coded Pulse Amplitude Modulation, used for HDSL2 and SHDSL
- DMT: Discrete multitone modulation, the most numerous kind, also known as OFDM (Orthogonal frequency-division multiplexing)
Read more about this topic: Very High Speed ADSL
Famous quotes containing the word methods:
“The reading public is intellectually adolescent at best, and it is obvious that what is called “significant literature” will only be sold to this public by exactly the same methods as are used to sell it toothpaste, cathartics and automobiles.”
—Raymond Chandler (1888–1959)